Epson Stylus CX7300 Service Manual page 82

EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200 series/SX200 series/Stylus CX8300/CX8400/DX8400/NX400/TX400 series/SX400 series Revision C
Occurrence
timing Detailed phenomenon
CR position
When turning on the power, the power on
sequence is performed correctly. But,
• Power on
when any printer job is sent to the printer,
• –
a communication error is indicated with
STM3.
TROUBLESHOOTING
Table 3-18. Check point for Communication error according to each phenomenon
Defective
unit/part name
1. Check if the USB Cable is connected between the printer
USB Cable
1. Check if an correct model name is stored into the address
2. Check if the Panel FFC is connected to CN12 on the Main
Main Board Unit
Error Indications and Fault Occurrence Causes
Check point
and the PC.
of the EEPROM on the Main Board.
Board.
Panel FFC
CN12
Remedy
1. Connect the USB Cable to the printer and the
PC.
1. Use the Adjustment Program to write the
correct value to the EEPROM address.
2. Connect the Panel FFC to CN12 on the Main
Board.
Confidential
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